The Sukhoi Su-30 (Cyrillic: Сухой Су-30) (NATO reporting name Flanker-C) is a twin-engine, two-seat military aircraft developed by Russia's Sukhoi Aviation Corporation. It is a multirole fighter for all-weather, air-to-air and air-to-surface deep interdiction missions.

The Su-30 started out as an internal development project in the Sukhoi Su-27 family by Sukhoi. The design plan was revamped and the name was made official by the Russian Defense Ministry in 1996. Of the Flanker family, only the Su-27, Su-30, Su-34 and Su-35 have been ordered into serial production by the Defense Ministry. All the others, such as Su-37, were prototypes.

The Eurofighter Typhoon is in service with five nations: United Kingdom, Germany, Italy, Spain and Austria. The aircraft has also been ordered by Saudi Arabia, with the first aircraft already delivered. The aircraft has so far been provided in a basic form and most of the major systems including the CAPTOR radar and the Defence Aids Sub-System (DASS) are expected to be improved and updated over time. However BAE states that even these early aircraft will be much more capable than the Tornado F3 and that the development of the Typhoon will exceed the learning curve of pilots.